I have been using the example from this website without any issue at all:
However there is now an error.
Here is a code snippet of the problem, once the BreastTissue data is loaded.
require(nnet) # Training the multinomial model multinom_model <- multinom(Class ~ ., data = tissue) # Predicting the values for train dataset train$ClassPredicted <- predict(multinom_model, newdata = train, "class")
Error Message below:
Error in predict(multinom_model, newdata = train, "class") : unused arguments (newdata = train, "class")
It is no longer working and I have tried to delete the current version and go back a couple of versions with R studio to see if that would fix the problem, but still no luck. Very strange. Any guidance on how to solve an issue like this?